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https://issues.apache.org/jira/browse/HBASE-2398?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12852164#action_12852164
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Todd Lipcon commented on HBASE-2398:
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If we move the log roll to hflush(), will it actually perform the roll or just
trigger it? It seems bad to put an HDFS create() call on the critical path to a
read.
> NPE in HLog.append when calling writer.getLength
> ------------------------------------------------
>
> Key: HBASE-2398
> URL: https://issues.apache.org/jira/browse/HBASE-2398
> Project: Hadoop HBase
> Issue Type: Bug
> Reporter: Jean-Daniel Cryans
> Assignee: Kannan Muthukkaruppan
> Fix For: 0.20.4, 0.21.0
>
>
> Doing some test uploads on a fresh single node setup, I'm seeing non-fatal
> NPEs in the region server log coming from HLog.append when calling
> writer.getLength. I'll post a log in a follow-up comment.
> Assigning to Nicolas so that he takes a look.
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